The Illinois Department of Children and Family Services also confirmed that it was notified about the allegations through its child abuse hotline in early June. A spokesman said Wednesday evening that the department is also investigating.

Brian Liedlich, Saint Viator president, sent an email to parents on Tuesday — the first week of summer break — saying that Saint Viator is cooperating with police and DCFS. He did not identify the former staff member who was accused.

“This former faculty member has no access to the campus or our students,” Liedlich wrote. “Due to the ongoing investigation, and since this situation involves a private personnel matter, we are unable to further discuss any specifics at this time.”